Robert, Juan and Linda all have positive z scores, signifying they scored above the mean.

Question

asked 2021-05-18

The college physical education department offered an advanced first aid course last semester. The scores on the comprehensive final exam were normally distributed, and the z scores for some of the students are shown below:

Robert, 1.10 Juan, 1.70 Susan, -2.00

Joel, 0.00 Jan, -0.80 Linda, 1.60

Which of these students scored above the mean?

Robert, 1.10 Juan, 1.70 Susan, -2.00

Joel, 0.00 Jan, -0.80 Linda, 1.60

Which of these students scored above the mean?

asked 2021-07-01

The college physical education department offered an advanced first aid course last semester. The scores on the comprehensive final exam were normally distributed, and the z scores for some of the students are shown below: Robert, 1.10 Juan, 1.70 Susan, -2.00 Joel, 0.00 Jan, -0.80 Linda, 1.60 If the mean score was μ=150μ=150 with standard deviation σ=20,σ=20, what was the final exam score for each student?

asked 2021-05-18

asked 2021-05-25

Assume that all the distributions are normal, average is always taken to be the arithmetic mean \(\bar{x}\) or \(\mu\). A college Physical Education Department offered an Advanced First Air course last semester. The scores on the comprehensive final exam were normally distributed, and the the z scores for some of the students are shown below:

Robert, 1.10

Juan, 1.70

Susan, -2.00

Joel, 0.00

Jan, -0.80

Linda,1.60

Which of these students scored below the mean?